Replace 55681 endpoint with 4318 endpoint for HTTP collector

[NathanielRN]

Which problem is this PR solving?

Follow up to core repo PR here: open-telemetry/opentelemetry-js#2395

The specifications just updated the HTTP port to be 4318 in this PR: open-telemetry/opentelemetry-specification#1839

Likewise, the Collector also updated from 55681 to 4318 open-telemetry/opentelemetry-collector#3743, but will support both for some time.

Short description of the changes

• Updates port for Metrics/Trace HTTP exporter to 4318

[codecov]

Codecov Report

Merging #603 (59529eb) into main (edfc04c) will decrease coverage by 0.58%.
The diff coverage is 100.00%.

❗ Current head 59529eb differs from pull request most recent head 4b1f69b. Consider uploading reports for the commit 4b1f69b to get more accurate results

@@            Coverage Diff             @@
##             main     #603      +/-   ##
==========================================
- Coverage   95.29%   94.71%   -0.59%     
==========================================
  Files          10       16       +6     
  Lines         701      813     +112     
  Branches      142      162      +20     
==========================================
+ Hits          668      770     +102     
- Misses         33       43      +10     

Impacted Files	Coverage Δ
...metry-browser-extension-autoinjection/src/types.ts	90.32% <100.00%> (ø)
...er-extension-autoinjection/src/background/index.ts	0.00% <0.00%> (ø)
...ction/src/contentScript/InstrumentationInjector.ts	100.00% <0.00%> (ø)
...njection/src/instrumentation/WebInstrumentation.ts	97.22% <0.00%> (ø)
...extension-autoinjection/src/contentScript/index.ts	0.00% <0.00%> (ø)
...rc/background/ProgrammaticContentScriptInjector.ts	100.00% <0.00%> (ø)

[obecny]

we should wait till core repo will change default port and then update the whole contrib - all packages and examples at once after core is released

[github-actions]

This PR is stale because it has been open 60 days with no activity. Remove stale label or comment or this will be closed in 14 days.

[github-actions]

This PR is stale because it has been open 60 days with no activity. Remove stale label or comment or this will be closed in 14 days.

[blumamir]

PR in core repo: open-telemetry/opentelemetry-js#2557

[blumamir]

open-telemetry/opentelemetry-js#2557

@NathanielRN , now that the change is merged in core repo, can you please solve the conflicts and upgrade the collector image so we can merge this PR?

Requested changes has been done